<template>
  <el-container>
    <el-header height="220">
      <el-steps :active="curStep" simple>
        <el-step title="组卷配置" icon="el-icon-edit"></el-step>
        <el-step title="考试用户" icon="el-icon-lock"></el-step>
        <el-step title="补充配置" icon="el-icon-setting"></el-step>
      </el-steps>

      <el-button style="margin-top: 10px" v-show="curStep !== 1" @click="curStep--">上一步</el-button>

      <el-button style="float:right;margin-top: 10px" v-show="curStep !== 2" type="primary" @click="curStep++">下一步
      </el-button>
      <el-button style="float:right;margin-top: 10px" v-show="curStep === 2" type="primary" @click="updateExam">提交
      </el-button>
    </el-header>

    <el-main>
      <!--设置试题信息-->
      <el-card v-show="curStep === 1">

        <span style="float: right;color: red;font-weight: bold">
          {{ '题目总分：' + sumTotalScore }}</span>

        <div>
          <el-card>
            <h1>题目列表</h1>
            <el-button type="primary" icon="el-icon-plus" size="small" @click="showAddDialog">添加试题</el-button>

            <el-table v-loading="pageLoading" :data="updateExamQuestion" border style="margin-top: 10px">

              <el-table-column
                type="index"
                label="序号"
                width="50">
              </el-table-column>

              <el-table-column label="题目内容" align="center">
                <template slot-scope="scope">
                  {{ scope.row.questionContent }}
                </template>
              </el-table-column>

              <el-table-column align="center"
                               label="题目类型">
                <template slot-scope="scope">
                  <span v-if="scope.row.questionType === 1">单选题</span>
                  <span v-else-if="scope.row.questionType === 2">多选题</span>
                  <span v-else-if="scope.row.questionType === 3">判断题</span>
                  <span v-else-if="scope.row.questionType === 4">主观题</span>
                </template>
              </el-table-column>

              <el-table-column label="单题分数" align="center">
                <template slot-scope="scope">
                  <el-input v-model="scope.row.score" style="margin-left: 5px"></el-input>
                </template>
              </el-table-column>

              <el-table-column label="操作" width="80" align="center">
                <template slot-scope="scope">
                  <el-button type="danger" icon="el-icon-delete" circle
                             @click="delQuestion(scope.row.questionId)"></el-button>
                </template>
              </el-table-column>
            </el-table>

          </el-card>
        </div>
      </el-card>

      <!--设置测试权限-->
      <el-card v-show="curStep === 2">
        <el-radio-group v-model="examInfo.type" size="medium">
          <el-radio :label="1" border>完全公开</el-radio>
          <el-radio :label="2" border>指定用户</el-radio>
        </el-radio-group>

        <el-alert style="margin-top: 15px"
                  :title="examInfo.type === 1? '开放的，任何人都可以进行测试！' : '半开放的，指定的人员才可以测试！'"
                  type="warning">
        </el-alert>

        <el-select
          v-show="examInfo.type === 2"
          v-model="selectedUsers"
          multiple
          filterable
          placeholder="请选择允许参加考试的用户"
          style="margin-top: 15px; width: 100%">
          <el-option
            v-for="user in userInfo"
            :key="user.id"
            :label="user.trueName"
            :value="user.id">
          </el-option>
        </el-select>
      </el-card>

      <!--设置测试信息-->
      <el-card v-show="curStep === 2">

        <el-form :model="examInfo" :rules="examInfoRules" ref="examInfoForm" label-width="100px">

          <el-form-item label="测试名称" prop="examName">
            <el-input v-model="examInfo.examName"></el-input>
          </el-form-item>

          <el-form-item label="测试描述" prop="examDesc">
            <el-input v-model="examInfo.examDesc"></el-input>
          </el-form-item>

          <el-form-item label="总分数" prop="totalScore">
            <el-input-number :value="sumTotalScore" :disabled="true"></el-input-number>
          </el-form-item>

          <el-form-item label="及格分数" prop="passScore">
            <el-input-number v-model="examInfo.passScore" :min="1" :max="sumTotalScore"></el-input-number>
          </el-form-item>

          <el-form-item label="测试时长(分钟)" prop="examDuration">
            <el-input-number v-model="examInfo.examDuration" :min="1" :max="120"></el-input-number>
          </el-form-item>

          <el-form-item label="测试开始时间" prop="startTime">
            <el-date-picker style="margin-left: 5px"
                            v-model="examInfo.startTime"
                            type="date" placeholder="测试开始时间">
            </el-date-picker>
          </el-form-item>

          <el-form-item label="测试结束时间" prop="endTime">
            <el-date-picker style="margin-left: 5px"
                            v-model="examInfo.endTime"
                            type="date" placeholder="测试结束时间">
            </el-date-picker>
          </el-form-item>

        </el-form>

      </el-card>
    </el-main>

    <el-dialog title="添加题目" :visible.sync="showQuestionDialog" width="80%" center>
      <el-row>
        <el-select @change="typeChange" clearable v-model="queryInfo.questionType" placeholder="请选择题目类型">
          <el-option
            v-for="item in questionType"
            :key="item.id"
            :label="item.name"
            :value="item.id">
          </el-option>
        </el-select>

        <el-select @change="bankChange" clearable v-model="queryInfo.questionBank" placeholder="请选择语言"
                   style="margin-left: 5px">
          <el-option
            v-for="item in allBank"
            :key="item.questionBank.bankId"
            :label="item.questionBank.bankName"
            :value="item.questionBank.bankName">
          </el-option>
        </el-select>

        <el-input v-model="queryInfo.questionContent" @blur="getQuestionInfo" placeholder="题目内容"
                  style="margin-left: 5px;width: 220px"
                  prefix-icon="el-icon-search"></el-input>
        <el-button type="primary" @click="addQuToFree" style="float: right">确认{{ selectedTable.length }}项</el-button>
      </el-row>

      <el-table
        ref="questionTable"
        highlight-current-row
        v-loading="loading"
        :border="true"
        :data="questionInfo"
        tooltip-effect="dark"
        style="width: 100%;margin-top: 25px;" @selection-change="handleTableSectionChange">

        <el-table-column align="center"
                         type="selection"
                         width="55">
        </el-table-column>

        <el-table-column align="center"
                         label="题目类型">
          <template slot-scope="scope">
            <span v-if="scope.row.quType === 1">单选题</span>
            <span v-else-if="scope.row.quType === 2">多选题</span>
            <span v-else-if="scope.row.quType === 3">判断题</span>
            <span v-else-if="scope.row.quType === 4">主观题</span>
          </template>
        </el-table-column>

        <el-table-column align="center" label="题目内容">
          <template slot-scope="scope">
            <span class="quContent">{{ scope.row.quContent }}</span>
          </template>
        </el-table-column>

        <el-table-column align="center"
                         label="难度">
          <template slot-scope="scope">
            <span v-if="scope.row.level === 1">简单</span>
            <span v-if="scope.row.level === 2">中等</span>
            <span v-if="scope.row.level === 3">困难</span>
          </template>
        </el-table-column>

        <el-table-column align="center"
                         prop="quBankName"
                         label="所属语言">
        </el-table-column>

        <el-table-column align="center"
                         prop="createPerson"
                         label="创建人">
        </el-table-column>

        <el-table-column align="center"
                         label="创建时间">
          <template slot-scope="scope">
            {{ scope.row.createTime }}
          </template>
        </el-table-column>


      </el-table>
      <!--分页-->
      <el-pagination style="margin-top: 25px"
                     @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pageNo"
                     :page-sizes="[10, 20, 30, 50]"
                     :page-size="queryInfo.pageSize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total">
      </el-pagination>
    </el-dialog>

  </el-container>
</template>

<script>
import examApi from '@/api/exam'
import question from '@/api/question'
import questionBank from '@/api/questionBank'
import utils from '@/utils/utils'
import user from '@/api/user'

export default {
  name: 'UpdateExam',
  data () {
    return {
      //测试权限(1公开, 2密码)
      examAuthority: 1,
      //所有学生用户信息
      userInfo:[],
      //选中的用户ID数组
      selectedUsers: [],
      //查询题目的参数
      queryInfo: {
        //题目类型下拉款所选的内容
        'questionType': '',
        'questionBank': '',
        'questionContent': '',
        'pageNo': 1,
        'pageSize': 10
      },
      //题目类型
      questionType: [
        {
          id: 1,
          name: '单选题',
        },
        {
          id: 2,
          name: '多选题',
        },
        {
          id: 3,
          name: '判断题',
        },
        {
          id: 4,
          name: '主观题',
        },
      ],
      //所有语言信息
      allBank: [],
      //当前的步骤
      curStep: 1,
      //测试题目信息
      updateExamQuestion: [],
      //添加语言的对话框
      showQuestionDialog: false,
      //对话框中题目表格的加载
      loading: true,
      //页面中的题目列表表格
      pageLoading: true,
      //所有题目的信息
      questionInfo: [],
      //所有题目的对话框中表格被选中
      selectedTable: [],
      //对话框中题目的总数
      total: 0,
      //当前测试的信息
      examInfo: {},
      //补充的测试信息的表单验证
      examInfoRules: {
        examName: [
          {
            required: true,
            message: '请输入测试名称',
            trigger: 'blur'
          }
        ],
        passScore: [
          {
            required: true,
            message: '请输入通过分数',
            trigger: 'blur'
          }
        ],
        examDuration: [
          {
            required: true,
            message: '请输入测试时长',
            trigger: 'blur'
          }
        ],
      },
    }
  },
  props: ['tagInfo'],
  created () {
    //一创建就改变头部的面包屑
    this.$emit('giveChildChangeBreakInfo', '更新测试', '更新测试')
    this.createTagsInParent()
    this.getExamInfo()
    this.getBankInfo()
    this.getUSerionInfo() // 获取用户信息
  },
  methods: {
    //查询所有学生用户
    getUSerionInfo () {
      let queryInfo= {
        'pageNo': 1,
        'roleId': 1,
        'pageSize': 100
      }
      user.getUserInfo2(queryInfo).then((resp) => {
        if (resp.code === 200) {
          this.userInfo = resp.data.data
        } else {
          this.$notify({
            title: 'Tips',
            message: '获取信息失败',
            type: 'error',
            duration: 2000
          })
        }
      })
    },
    //向父组件中添加头部的tags标签
    createTagsInParent () {
      let flag = false
      this.tagInfo.map(item => {
        //如果tags全部符合
        if (item.name === '更新测试' && item.url === this.$route.path) {
          flag = true
        } else if (item.name === '更新测试' && item.url !== this.$route.path) {
          this.$emit('updateTagInfo', '更新测试', this.$route.path)
          flag = true
        }
      })
      if (!flag) this.$emit('giveChildAddTag', '更新测试', this.$route.path)
    },
    //根据测试的id查询测试的信息和题目的信息
    async getExamInfo () {
      await examApi.getExamInfoById(this.$route.params).then((resp) => {
        if (resp.code === 200) {
          this.examInfo = resp.data
          let scores = resp.data.scores.split(',')
          const questionArr = resp.data.questionIds.split(',')
          const questionScoreMap = new Map()
          for (let i = 0; i < questionArr.length; i++) {
            questionScoreMap.set(questionArr[i], scores[i])
          }
          question.getQuestionByIds({ 'ids': resp.data.questionIds }).then(resp => {
            if (resp.code === 200) {
              (resp?.data?.data || []).forEach(q => {
                this.updateExamQuestion.push({
                  'questionId': parseInt(q.questionId),
                  'questionType': q.questionType,
                  'questionContent': q.questionContent,
                  'score': questionScoreMap.get(`${q.questionId}`)
                })
              })
            }
          })
          this.pageLoading = false
        }
      })
    },
    //自由组卷时添加试题
    showAddDialog () {
      this.showQuestionDialog = true
      this.getQuestionInfo()
    },
    //获取所有的语言信息
    getBankInfo () {
      questionBank.getBankHaveQuestionSumByType({
        'pageNo': 1,
        'pageSize': 9999
      }).then((resp) => {
        if (resp.code === 200) {
          this.allBank = resp.data.data
        } else {
          this.$notify({
            title: 'Tips',
            message: resp.message,
            type: 'error',
            duration: 2000
          })
        }
      })
    },
    //获取题目信息
    getQuestionInfo () {
      question.getQuestion(this.queryInfo).then((resp) => {
        if (resp.code === 200) {
          this.questionInfo = resp.data.data
          this.total = resp.data.total
          this.loading = false
        } else {
          this.$notify({
            title: 'Tips',
            message: '获取语言信息失败',
            type: 'error',
            duration: 2000
          })
        }
      })
    },
    //自由组卷时删除试题
    delQuestion (questionId) {
      this.updateExamQuestion.forEach((item, index) => {
        if (item.questionId === questionId) this.updateExamQuestion.splice(index, 1)
      })
    },
    //题目类型变化
    typeChange (val) {
      this.queryInfo.questionType = val
      this.getQuestionInfo()
    },
    //语言变化
    bankChange (val) {
      this.queryInfo.questionBank = val
      this.getQuestionInfo()
    },
    //自由组卷中选中的题目添加进去
    addQuToFree () {
      this.selectedTable.forEach(item => {
        if (!this.updateExamQuestion.some(i2 => {
          return i2.questionId === item.id
        })) {//不存在有当前题目
          this.updateExamQuestion.push({
            'questionId': item.id,
            'questionContent': item.quContent,
            'questionType': item.quType,
            'score': 1
          })
        }
      })
      this.showQuestionDialog = false
    },
    //处理表格被选中
    handleTableSectionChange (val) {
      this.selectedTable = val
    },
    //分页页面大小改变
    handleSizeChange (val) {
      this.queryInfo.pageSize = val
      this.getQuestionInfo()
    },
    //分页插件的页数
    handleCurrentChange (val) {
      this.queryInfo.pageNo = val
      this.getQuestionInfo()
    },
    //更新测试
    updateExam () {
      utils.validFormAndInvoke(this.$refs['examInfoForm'], () => {
        //构造数据对象(测试信息)
        let exam = this.examInfo
        if (this.updateExamQuestion.length !== 0) {
          console.log(exam)//自由组卷模式
          if (exam.type === 1) {
            exam.password = null
          }
          if (exam.type === 2 && this.selectedUsers.length == 0) {
            this.$message.error('当前需要指定用户,但是用户为空')
            return false
          }else {
            exam.password = this.selectedUsers.join(",")
          }
          //题目id数组
          let questionIds = []
          //题目成绩数组
          let scores = []
          this.updateExamQuestion.forEach(item => {
            questionIds.push(item.questionId)
            scores.push(item.score)
          })
          exam.questionIds = questionIds.join(',')
          exam.scores = scores.join(',')
          examApi.updateExamInfo(exam).then((resp) => {
            if (resp.code === 200) {
              this.$notify({
                type: 'success',
                title: 'Tips',
                message: resp.message,
                duration: 2000
              })
              this.$router.push('/examManage')
            }
          })
        } else {
          this.$message.error('请检查测试规则设置是否完整')
        }
      }, '请检查测试规则设置是否完整')
    }
  },
  computed: {
    //计算总分
    sumTotalScore () {
      let score = 0
      this.updateExamQuestion.forEach(item => {
        score += parseInt(item.score)
      })
      this.examInfo.totalScore = score
      return score
    }
  }
}
</script>

<style scoped lang="scss">
.el-container {
  width: 100%;
  height: 100%;
}

.el-container {
  animation: leftMoveIn .7s ease-in;
}

@keyframes leftMoveIn {
  0% {
    transform: translateX(-100%);
    opacity: 0;
  }
  100% {
    transform: translateX(0%);
    opacity: 1;
  }
}


/deep/ .el-table thead {
  color: rgb(85, 85, 85) !important;
}

/*表格的头部样式*/
/deep/ .has-gutter tr th {
  background: rgb(242, 243, 244);
  color: rgb(85, 85, 85);
  font-weight: bold;
  line-height: 32px;
}

.el-table {
  box-shadow: 0 0 1px 1px gainsboro;
}
</style>
